Question:
In the given reaction sequence, conversion of Acetophenone (\( C_6H_5COCH_3 \)) to Ethylbenzene (\( C_6H_5CH_2CH_3 \)) is an example of:
\[
\text{CH}_3\text{COC/}
\]
\[
\text{Anhy. AlCl}_3 \xrightarrow{\text{X}} \xrightarrow{\text{(1) N}_2\text{H}_4} Y
\]
\[
\Delta \xrightarrow{\text{(2) KOH / glycol}}
\]
In the given reaction sequence, conversion of Acetophenone (\( C_6H_5COCH_3 \)) to Ethylbenzene (\( C_6H_5CH_2CH_3 \)) is an example of:
\[
\text{CH}_3\text{COC/}
\]
\[
\text{Anhy. AlCl}_3 \xrightarrow{\text{X}} \xrightarrow{\text{(1) N}_2\text{H}_4} Y
\]
\[
\Delta \xrightarrow{\text{(2) KOH / glycol}}
\]
Show Hint
For complete removal of carbonyl oxygen, use Wolff-Kishner reduction, especially when zinc amalgam (Clemmensen reduction) is unsuitable.
Updated On: Jun 5, 2025
- Clemmensen reduction
- Stephen reduction
- Wolff-Kishner reduction
- Rosenmund reduction
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The Correct Option is C
Solution and Explanation
Step 1: Understanding the Reaction Sequence
The given reaction sequence involves the conversion of acetophenone (\( C_6H_5COCH_3 \)) into ethylbenzene (\( C_6H_5CH_2CH_3 \)), meaning it involves complete reduction of the carbonyl group to an alkane.
Step 2: Identifying the Reduction Method
The Wolff-Kishner reduction is a well-known method for converting ketones to alkanes via the following steps:
1. Formation of hydrazone by treating the ketone with hydrazine (\( N_2H_4 \)).
2. Heating with KOH in glycol, leading to complete removal of oxygen and formation of the corresponding alkane.
Conclusion
Thus, the correct answer is:
\[
\text{Wolff-Kishner reduction}
\]
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